Belarus 1025 2008 User manual

BELARUS
1025/1025.2/1025.3
1025 – 0000010OM
OPERATION MANUAL
The fourth edition, revised and supplemented
2008

The present operation manual has been compiled by A.G.Sanchuk, engineer of MSDB-
MTW, with participation of the leading specialists of Central Special Design Bureau of RUE
“Minsk Tractor Works”
Executive Editor — I.N. Uss, Director of the Scientific- Technical Center
Chief designer
Managing Editor — O.N. Natalevich, head of Design Bureau
Tractors Belarus 1025/1025.2/1025.3 Operation manual. 4th edition, revised and
supplemented.
Operation manual contains brief description and technical characteristics of tractors Belarus
1025/1025.2/1025.3 manufactured by Minsk Tractor Works. Principal rules of machine
operation are set forth, data on their adjustments and maintenance are given.
The manual is intended for operators of tractors Belarus.
Due to policy of PA “MTW” aimed at constant update of items being manufactured, design
of some assembly units and parts of tractor Belarus may be changed without being shown
in the present edition.
Some technical data and figures given in this book may differ from actual ones on your
tractor. Dimensions and values of mass are approximate (given for reference). You may
obtain detailed information from your dealers of Belarus.
RUE “Minsk Tractor Works”, 2008
All rights reserved. No part of this manual may be reproduced in any form whatsoever
without written permit of RUE “Minsk Tractor Works”

FOR THE ATTENTION OF OPERATORS
1. Before starting work thoroughly study the present operation manual and strictly follow
all operation and maintenance directions.
2. Be sure to run the tractor in for thirty hours. Put load up to 80% of rated power before
the first maintenance M-1 (125 hours).
3. Your tractor is equipped with range-type gear box. It means ranges are shifted by
means of toothed-type coupling and gears within each range – by synchronizers.
To shift the range:
— Press out the clutch pedal and wait until full tractor stop;
— Using range shifting lever smoothly and without jerks engage the required range;
— Smoothly release the clutch pedal.
To put in gear:
— Press out the clutch pedal;
— Smoothly, without sharp jerks move gear shifting lever and hold it pressed until gear is
fully put in;
— Smoothly release the clutch pedal.
Put in gears within the range while running only during transport operation on hard surface
and dirt roads. During the off-road (ploughed field, peat field, sand soil) tractor travel
gear shifting while running IS NOT ALLOWED due to sharp stop of the machine. In this
case use earlier selected gear to travel across these legs. Failure to observe these
operation directions leads to fast wear of gears’ splines and toothed-type couplings, as
well as damage of synchronizers.
ATTENTION! If, with clutch pedal pressed out, ranges and gears are shifted with grinding
sound, promptly address the dealer’s center to correct malfunction.
4. Follow directions for switching PTO. With PTO control lever engaged, smoothly, with
2…4 s delay in the middle of travel from the neutral to PTO switching to avoid damage
of shaft, reduction gears and PTO driving end.
5. Make adjustment of wheel and parking brakes only on horizontal terrain with diesel shut
down and wedges placed at the front and back sides of rear wheels to exclude
accidental movement of the tractor.
6. Do not operate the tractor without storage batteries connected to the electrical
equipment system and “ground” switch being off with the running engine.

Belarus 1025/1025.2/1025.3______________________________________________ Contents
1
CONTENTS
Section А. INTRODUCTION. INTERNATIONAL SYMBOLS А1
Section B. PRECAUTIONARY MEASURES B1
Section C. TECHNICAL DATA C1
Section D. CONTROLS AND INSTRUMENTS D
Section E. GETTING TRACTOR READY FOR OPERATION E1
Section F. GANGING UP F1
Section G. MAINTENANCE G1
Section H. ADJUSTMENTS H1
Section I. POSSIBLE MALFUNCTIONS AND CORRECTION
METHODS I1
Section J. TRANSPORTATION AND TOWING OF THE
TRACTOR J1
Section K. STORAGE OF THE TRACTOR K1
Section L. DISPOSAL OF THE TRACTOR L1
Section M. ELECTRIC WIRING DIAGRAM M1

Belarus 1025/1025.2/1025.3 Section А.Introduction
А1
Section А. INTRODUCTION
The present operation manual contains major technical data and
recommendations on the operation and maintenance of tractors Belarus
1025/1025.2/1025.3.
Tractors Belarus 1025/1025.2/1025.3 are designed for executing various
agricultural works with mounted, half-mounted and trailing machines and implements,
in transportation, with loading, unloading mechanisms, harvesting complexes and for
driving stationary machines.
Tractor Belarus 1025 – is a base model with engine Д-245, rated power of 77
kW (104.6 hp), front drive axle (FDA) of portal type with coned wheel reduction gears,
hydraulic mounting system with power regulator and traction-coupling mechanism
TCM-1J (cross-piece).
Tractors Belarus 1025.2 and Belarus 1025.3 are modifications of the base
model.
Tractor Belarus 1025.2 – with engine Д-245 with rated power of 77 kW (104.6
hp), beam-type FDA with planetary-cylindrical wheel reduction gears, hydraulic
mounting system with power regulator and traction-coupling mechanism TCM1J
(cross-piece), or hydraulic lift and lift-type TCM with yoke TCM-3V.
Tractors Belarus 1025 and Belarus 1025.2 can be equipped (optionally) with
engine Д-245S with rated power of 79 kW (107.3 hp), certified according to the 1st
stage of Directive 2000/25 ЕС.
Tractor Belarus 1025.3 – with engine Д-245S2 has rated power of 81 kW
(110.0 hp), beam-type FDA with planetary-cylindrical wheel reduction gears, hydraulic
mounting system with power regulator and traction-coupling mechanism TCM-1J
(cross-piece), or hydraulic lift and lift-type TCM-3 (yoke). Updated design of the cabin
and hood. Engine Д-245S2 is certified according to 2nd stage of Directive 2000/25 EC.
ATTENTION! Prolonged and reliable tractor operation is possible only if
proper operation and timely maintenance are observed
ATTENTION! Before putting new tractor into operation study the present
operation manual and strictly follow recommendations thereof, to avoid accidents,
injures or mutilations.
Note: Reference in the present manual text made to “left-side” or “right-side”
are made from the view of the observer standing behind the running tractor.
Note: Due to constant tractor update and improvement of working conditions,
changes, not indicated in the present edition, may be introduced to the tractor
design.
Re-equipment and alteration of tractor design without approval of the
manufacturer are forbidden.

Belarus 1025/1025.2/1025.3 Section A Introduction
А2Accepted abbreviations and legend
SB —storage battery;
DL —rear axle differential locking;
PFE — paper filtering element;
UDC —upper dead center of the diesel piston;
PTO —power take-off shaft;
PRS —power receipt shaft.
HMU —hydraulic mounting unit;
HS — hydraulic steering;
DM —daily maintenance;
KIT — spare parts, tools and accessories;
RMU —rear mounting unit;
IVR — integral voltage regulator
CFE — control filtering element of diesel air purifier;
GB —gear box;
МТА —machine- tractor assembly;
С—clutch;
M - maintenance
HACS - Hydrosystem Automatic Control System
SP – sparkling plug
TCM (in Russian: ТСУ) – traction – coupling mechanism ( drawbar hitch,
towing coupler)
.

Belarus 1025/1025.2/1025.3 section А. Introduction
А3
International symbols
The manufacturer uses standard International symbols related to the use of devices
and controls. Symbols and their meanings are given below.
See Manual
Steering manipulation
Brake
Fast
Parking brake
Slowly
Signal
Forward
Emergency alarm
Back
- fuel
- battery charging
- cooling liquid
- cabin ceiling lamp
- pre-start heater plug
side lamps
- diesel speed
- turn lamp
- diesel oil pressure
trailer turn lamps
- diesel cooling fluid
temperature
- upper light

off/stop
lower light
on/start
- operation headlight
gradual change
- differential locking
- lever — down
power take off shaft is on
- lever — up
front driving axle is on
- position of control
valve – distributor “up”
- fan
- position of control
valve-distributor “down”
- windshield washer
- position of control
valve- distributor “floating”
- windshield cleaner
- oil pressure in GB
- rear glass cleaner
- air pressure in the
pneumatic system
- oil pressure in HS
- -air filter clogging
- diesel start (lamp in the
box of control lamps

Belarus Section B Safety requirements
B1
Section B Safety requirements
Strict observance of precautionary
measures and abidance by tractor
control and maintenance directions
guarantee complete safety of its
operation.
General directions
Carefully study operator’s manual
before using the tractor. Insufficient
knowledge of tractor operation and
maintenance may be the cause of
accidents.
1. The tractor can be operated only
by trained and qualified
specialists briefed on safety
engineering and fire safety.
2. If tractor is provided with safety belt,
use it during operation. If tractor is
not equipped with safety belt,
address your dealer.
3. Do not place a passenger in the
cabin, unless additional seat and
railing are provided. There is no
other safe place for a passenger in
the cabin!
4. Keep all warning plates tidy.
5. If plates are damaged or lost,
replace them with new ones.
6. Before starting work carefully
examine the tractor, trailing
machine, mounted implement and
hitch. Start the work only being
sure they are fully operational.
Trailing agricultural machinery and
transport trailers must be provided
with rigid hitches, excluding their
sway and run-over during
transportation.
Precautionary measures during
tractor operation
Attention! Do not start the diesel
being out of operator’s working seat.
Stay always inside the cabin during
diesel start up and controls
manipulation.
7. Before starting the diesel, parking
brake should be engaged, lever of
power take-off shaft (PTO) in the
position “off”, levers of range and
GB gears shifting – in the position
“neutral”. Switch of GB pump drive
should be in position driven from
“diesel”.
8. Do not start the diesel up and do
not use control levers being out of
operator’s working place.
9. Before starting movement warn
people around and those working
on trailing machines with a horn.
10. Do not leave the moving tractor.
11. Before leaving the cabin disengage
PTO, engage parking brake and
pull out starter switching key.
12. Do not operate the tractor inside
closed rooms not properly
ventilated. Exhaust gases may
be the cause of death!
13. When malfunction appears
immediately stop the tractor and
correct the trouble.

Belarus 1025/1025.2/1025.3 Section B. Safety requirements
B2
13.1. If diesel or steering wheel fail
during operation, immediately stop
the tractor. Remember that with
diesel shut down much greater effort
has to be applied to the steering
wheel.
14. Do not work under lifted agricultural
implements. During prolonged
breaks do not leave mounted
implement in lifted position.
15. If the front part of the tractor drives
off the ground when mounting heavy
machines and implements, put front
load.
16. When operating with frontal loader
fill rear tires with liquid ballast.
17. Before lifting or lowering a mounting
agricultural implement, as well as
when turning, make sure in advance
that there is no danger of brushing
against somebody, or hit against an
obstacle.
18. During transport travel with mounted
machines or implements always use
mechanism for fixing the mounting in
the lifted position (for HMS without
hydraulic lift).
19. The gimbal gear for transferring
rotation from tractor PTO to
assembly tools should be protected.
20.Make sure any additional equipment
or auxiliary devices are properly
installed, and also that they are
intended to be ganged up with your
tractor.
Remember, that if not properly
operated, your tractor may be
perilous both for you and other
persons. Do not use equipment
not intended for use on yoyr
tractor.
21. To avoid overturning take care
when running the tractor. Choose
safe speed in accordance with road
conditions, in particular when
travelling on cross-country terrain,
across ditches, slopes and at sharp
turns.
22. When operating on slopes expand
tractor wheel span to maximum.
23. Do not turn sharp under full load
and at high travelling speed.
24. When using tractor for transport
purposes:
•Increase tractor wheel span up to
1600 mm (64’’);
•Interlock braking pedals, check
and adjust brakes for synchronous
action, if necessaryс;
•Check functioning of parking brake;
•Check state of light and sound
alarms;
•Transport trailers should be
provided with rigid hitch and
additionally coupled by means
safety chain or steel rope;
•Never move down the hill with gear
disengaged (coasting). Move at one
and the same gear both uphill and
downhill;
•Do not operate the trailer without
stand-alone brakes, if its mass
exceeds by half total actual
tractor mass. The faster you
move and the larger the mass
being towed, the larger safe
distance should be;
•Disengage FDA to avoid
excessive wear of driving parts
and tires .

Belarus 1025/1025.2/1025.3 Section B. Safety requirements
B3
•do not use rear axle differential
interlock at speed over 10 km/h
and when turning.
•Do not stop the tractor on slope. If
the stop is necessary, put in the 1st
gear and engage the parking brake.
25. When operating PTO driven
equipment, before leaving the cabin
to disconnect the equipment, shut
down diesel and make sure PTO
drive end fully stopped.
26. Do not put on loose clothes in the
vicinity of PTO or rotating
mechanisms.
27. When operating PTO driven
stationary machines, always engage
the parking brake and block rear
wheels on both sides.. Make sure the
machine is securely fixed.
28. Be sure to install fencing of PTO
drive end, and if PTO is not used
shift PTO range switch to middle
position.
29. Do not make cleaning, adjustment
or service of PTO driven
equipment with running diesel.
Precautionary measures during
maintenance
30. Never fill in the tractor with diesel
running.
31. Do not smoke when filling tractor
with fuel.
32. Do not fill in fuel tanks to the full.
Have some space for fuel
expansion.
33. Never add gasoline or other
mixtures to diesel fuel. Such
combinations may create
high danger of combustion or explosion.
34. Correctly use summer and winter
grades of fuel. Fill in the fuel tank at
the end of each day to reduce
night-time moisture condensation.
35. Perform all operations related to
cleaning of diesel and tractor,
preparation for work, maintenance
and so on, with diesel shut down
and tractor braked.
36. The cooling system is functioning
under pressure, which is
maintained by means of the valve
installed in the filling neck cover. It
is dangerous to remove cover on
the hot diesel. To avoid burns of
face and hands be careful to open
the plug of radiator neck on the hot
diesel. First, put tight cloth on the
plug and put on a mitten.
37. To avoid burns take care when
draining cooling fluid or water from
the cooling system, hot oil from
diesel, hydraulic system and
transmission.
38. Take care when handling storage
batteries, as electrolyte may cause
burns when splashed on skin.
39. To avoid danger of explosion keep
open flame sources away from
diesel fuel system and storage
batteries.
40. Keep tractor, brakes and steering in
particular, operational for your own
safety and those close by.
41. Do not make any alterations to
the tractor or its individual
components without approval of
your dealer and manufacturer.

Belarus 1025/1025.2/1025.3 РSection B. Safety requirements
B 4
Otherwise tractor guarantee service
is discontinued.
42. Fill the tractor only with oils and
lubricants recommended by the
manufacturer. The use of other
lubricants strictly forbidden.!
Safety requirements in operating
and maintaining electrical
equipment
43. To avoid damage of semiconductor
devices and resistors take the
following precautions:
•do not disconnect storage
batteries with running engine.
This will result in peak voltage in
the charge circuit and inevitable
damage of diodes and transistors;
•do not disconnect electrical wiring
before diesel is shut down and all
electrical switches are off.;
•do not cause short-circuit due to
wrong wiring connection. Short-
circuiting or wrong polarity will
cause damage of diodes and
transistors;
•do not connect SB to the
electrical equipment system until
polarity of terminals and voltage
are checked;
•do not check electric current ‘by
spark”, as this will immediately
lead to transistors’ break-down;
•do not switch of “ground” with
diesel running;
•do not operate tractor without SB.
Hygiene requirements
•Daily fill thermal bottle with pure
drinking water;
•The first-aid kit must be staffed
with bandages, iodine, salmiac, boric
vaseline, soda, validole and analgine;
•Depending on work conditions use
natural cabin ventilation or air heating
and cooling system.
•During continuos work during the
shift for over 2.5 hours, use individual
noise protection means under GOST
12.4.051-87 (earphones).
Fire safety requirements.
1. Tractor has to be equipped with fire
fighting means – a shovel and fire
extinguisher. Do not operate the
tractor without fire fighting tools.
2. Never fill in the tractor with running
engine.
3. Do not smoke when filling the
tractor with fuel.
4. Do not fill in fuel tanks to the full.
Have some space for fuel expansion.
5. Never add gasoline or other
mixtures to diesel fuel. Such
combinations may create higher
danger of inflammation or explosion.
6. Sites of tractors’ parking and
storage of fuel and lubricants must be
equipped with fire fighting means.
7. Fill tractors with fuel and lubricants
mechanically with diesel shut down.
Use illumination at night time.

Belarus 1025/1025.2/1025.3 section B. Safety requirements
B5
Filling of fuel tanks using buckets is
not recommended.
8. Clean parts and assembly units off
vegetation remains when doing repairs
in field conditions using electric-gas
welding.
9. Do not allow staining of collector
and muffler with dust, fuel, straw, etc.
10. Do not allow winding of straw on
rotating parts of machines ganged up
with tractor.
11. When rinsing parts and assembly
units with kerosine and gasoline, take
measures to prevent inflammation of
rinsing fluid vapors.
12. Do not allow tractor operation in
fire sensitive places with hood and
other protective fixtures being taken off
heated diesel parts.
13. Do not use open flame for heating
oil in the diesel casing, when filling fuel
tanks and burning stains in the radiator
core.
14. When flame hotbed appears, cover
it with sand, sacking or some other tight
cloth. Use carbon-dioxide fire
extinguisher. Do not pour water on
burning fuel.
15. Avoid easily inflammable materials
close by outlet manifold and muffler.
16. Switch off “ground” when tractor
stops operation.

Belarus 1025/1025.2/1025.3 Section C. Technical data
C1
Section C. TECHNICAL DATA
Mass and dimensions
Description
Value
1025
1025.2
1025.3
А
Length, mm (with loads)
4205±50
4205±50
4600±50
B
Width, mm
1970±20
C
Height,
2820±20
D
Wheel base,mm
2570±20
E
Front wheels span, mm
1420 - 1950
1420 - 2000 (
short FDA
beam)
1540 - 2120 (long FDA beam)
F
Rear wheels span, mm
1400 - 2100
G
Agrotechnical clearance under half-
axles’ hoses, mm
645
Mass (as dispatched from the
works), kg
4060±100
4245±100
Numbering of tractor components
Tractor nameplate with serial tractor
and diesel numbers .

Belarus 1025/1025.2/1025.3 Section C. Technical data
C2
Serial tractor number is duplicated on
the right-side longitudinal, or left- or
right-side longitudinal plate.
Serial diesel number is duplicated on
the nameplate fixed to the cylinder
block left side.
Number of diesel turbo
supercharger
Number of clutch casing

Belarus1025/1025.2/1025.3 Section C. Technical data
C3
Number of gear box
Number of transmission
а) tractors without hydraulic lift
b) tractors with hydraulic lift
Number of FDA (on the front of
housing}
Serial number of the cabin and
certificate

Belarus 1025/1025.2/1025.3 Section C. Technical data
C4
Diesel
Diesel model
Д-245
Д-245S
Д-245S2
Manufacturer
MMW (Minsk Motor Works)
Type
4-stroke. in-row. turbo charge
Number of cylinders, pieces.
4
Method of mixture formation
Direct fuel injection
Compression degree (calculated)
15.1±1
15.1±1
15,1/17±1
Diameter of cylinder,mm
110
Piston stroke,mm
125
Displacement volume, l
4.75
Firing order
1-3-4-2
Cooling system
fluid
Rated speed, rev/min
2200
Maximum rotational speed, rev/min
2380
2380
2420
Minimum rotational speed , rev/min
700
600
800
Rated power, kW
77+4
79±2
81 ±2
Maximum torque, Nm
385.5
385.0
429,0
Specific fuel consumption, ml/kWh
236+3
244.3
249
Clearance between inlet valve and
rocker on cold diesel, mm
0.25.0.30
Clearance between outlet valve and
rocker on cold diesel, mm
0.40.0.45
Advance angle of fuel injection to
UDC, degrees
22±1
13±1
3,5±0,5
Fuel injection pressure MPa
(kgf/cm2)
21.6+08(220+8)
23.5+1.2 (240+12)

Belarus 1025/1025.2/1025.3 Section C. Technical data
C5
Diesel fuel supply system
Fuel pump
Type: four-plunger, in-row, with
booster pump:
Diesel D - 4 УТНИ-Т, НЗТА;
Diesel Д-245S - РР4М10Р1f-3480
MOTORPAL or UTNI-Тor 773-01,
YAZDA;
Diesel Д-245S2 - 773-01Т,
YAZDA;
Regulator: mechanical, centrifugal, all-
mode, direct action, automatic
increase of fuel supply during diesel
start.
Pressure of fuel injection start
— 21.6+0,8МPa (220+8 kgf/cm2) for diesels Д-
245, Д-245S; 23.5+1,2 MPa (240+12 кgf/cm2)
for diesel Д-245S2.
Nozzles: FDM-22 17.1112010-01
Diesel Д-245; 17.1112010-10
(MOTORPAL) or 171.1112010-01
diesel Д-245S; 445.1112010-50
or 172.1112010-11.01 diesel Д-245S2.
Air purifier
Combined: monocyclone (dry
centrifugal purification) and air purifier
with oil bath (for Д-245, Д-245S). With
paper filtering element for Д-245S2.
Turbo super charger: centripetal
radial one-shaft turbine with
centrifugal super charger can be
used.
Foreign-made turbo super chargers
OHB (cooler of charged air for
diesel Д-24582) installed in front of
water radiator. It is intended for
cooling air charged in the input
diesel manifold.
Diesel cooling system
Type: fluid, enclosed, with forced fluid
circulation, temperature control using
thermostat and radiator shutter,
controlled from the operator’s seat (for
Belarus 1025.3 – without the radiator
shutter with expansion tank). Normal
operation temperature from 80°Сto
95°С. Cooling system capacity is 19 l.
Cooling fluid OJ-40, OJ-65, Tosol
A40M, Tosol A65M.
Diesel lubrication system
Type: combined with fluid-oil heat
exchanger (FOE).
Oil purification: centrifugal oil and
meshed oil pre-filter. For diesel Д-
245S2 filter with disposable paper
filtering element is used. Minimum oil
pressure is : 0.08 MPa (0.8 kgf/cm2)
at 600 rev/min. Operation pressure is
0.2...0.3 MPa(2...3 kgf/cm2).Maximum
pressure on the cold diesel is up to 0.6
MPa (6 kgf/cm2). Lubrication system
capacity is 15 l.
Diesel starting system
Electric starter of 24 V or (12 V
optional), rated power 4.0 kW.
Easy start device:
- Д-245, Д-245S – electric torch heater;
- Д-245S2 – spark plug .
Generator
Alternating current, rated voltage 14 v,
power 1150 W.

Belarus 1025/1025.2/1025.3 Section C В. Technical data
C6
Clutch
Type: Dry, friction, two-disk.
Mechanical drive.
Disk diameter: 340 mm.
Gear box
Type: mechanical, range,
synchronized.
Gears: 16 forward, 8 rear.
Ranges: 4 forward and 2 rear with
permanently engaged gears, engaged
with toothed couplings. Each range has
4 synchronized gears.
Rated speed of tractor movement in km/h at diesel crankshaft rotation speed
of 1400-2200 rev/min (rear tires 16.9R38)

Belarus 1025/1025.2/1025.3 Section C. Technical data
Rated speed of tractor movement in km/h at diesel crankshaft rotation
speed of 1400...2200 rev/min (rear tires 18.4R34)
С7